Home / 3,085.90-4,258.51-1,759.57

Finding the Fourth Proportional to 3,085.90, 4,258.51 and 1,759.57

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Solution

The fourth proportional to 3,085.90, 4,258.51 and 1,759.57 is: 2,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.90 : 4,258.51 = 1,759.57 : x
  2. Step 2: Convert to fraction form
    3,085.90/4,258.51 = 1,759.57/x
  3. Step 3: Cross multiply
    3,085.90x = 4,258.51 × 1,759.57
  4. Step 4: Simplify right side
    3,085.90x = 7,493,146.44
  5. Step 5: Solve for x
    x = 7,493,146.44/3,085.90
  6. Step 6: Final answer
    x = 2,428.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.